نتایج جستجو برای: herbicides

تعداد نتایج: 8885  

2013
Istvan Jablonkai

Herbicide safeners, formerly referred to as herbicide antidotes, are chemical agents that increase the tolerance of monocotyledonous cereal plants to herbicides without affecting the weed control effectiveness. The use of safeners offer several benefits to agricultural weed control. Safeners may allow: (1) the selective chemical control of weeds in botanically related crops; (2) the use of nons...

Journal: :The Science of the total environment 2000
M S Majewski W T Foreman D A Goolsby

Weekly composite rainfall samples were collected in three paired urban and agricultural regions of the Midwestern United States and along the Mississippi River during April-September 1995. The paired sampling sites were located in Mississippi, Iowa, and Minnesota. A background site, removed from dense urban and agriculture areas, was located near Lake Superior in Michigan. Herbicides were the p...

2015
S. Deivasigamani

Toxicity of the herbicides like 2, 4-D NA salt, glyphosate and paraquat were tested, fish was investigated in laboratory and toxicity tested with common carp. Median lethal concentrations were determined in acute tests. The 96 h LC50 value was 100, 86 and 26 mg/L were tested. The experiment was laid out in a randomized block design with four replications. Screening of different herbicides was t...

2012
Ramiro Lascano Nacira Muñoz Germán Robert Marianela Rodriguez Mariana Melchiorre Victorio Trippi Gastón Quero

Paraquat (1,1_-dimethyl-4,4_-bipyridinium dichloride), is a foliar-applied and non selective bipyridinium herbicides, and it is one of the most widely used herbicides in the world, controlling weeds in a huge variety of crops like corn, rice, soybean, wheat, potatoes; major fruits: apples, oranges, bananas; beverages: coffee, tea, cocoa; and processed crops: cotton, oil palm, sugarcane and rubber.

2006
Mary H. Ward Jay Lubin James Giglierano Joanne S. Colt Calvin Wolter Nural Bekiroglu David Camann Patricia Hartge John R. Nuckols

Rural residents can be exposed to agricultural pesticides through the proximity of their homes to crop fields. Previously, we developed a method to create historical crop maps using a geographic information system. The aim of the present study was to determine whether crop maps are useful for predicting levels of crop herbicides in carpet dust samples from residences. From homes of participants...

2013
Shiv Shankhar Kaundun Sarah-Jane Hutchings Richard P. Dale Eddie McIndoe

BACKGROUND Knowledge of the mechanisms of herbicide resistance is important for designing long term sustainable weed management strategies. Here, we have used an integrated biology and molecular approach to investigate the mechanisms of resistance to acetyl-CoA carboxylase inhibiting herbicides in a UK black-grass population (BG2). METHODOLOGY/PRINCIPAL FINDINGS Comparison between BG2 phenoty...

2005
Kevin B. Kelley Loyd M. Wax Aaron G. Hager Dean E. Riechers

Dean E. Riechers Corresponding author. Department of Crop Sciences, University of Illinois, Urbana, IL 61801; [email protected] Two studies investigated off-target exposure of soybean to plant growth regulator (PGR) herbicides and determined if simultaneous exposure to PGR herbicides and labeled soybean herbicides increase PGR injury. The PGR herbicides, 2,4-D, clopyralid, and dicamba, as well ...

2016
Hossein Sabet Zangeneh Hamid R. Mohammaddust Chamanabad Eskandar Zand Ali Asghari Khalil Alamisaeid Ilias S. Travlos Mohammad T. Alebrahim

Citation: Sabet Zangeneh H, Mohammaddust Chamanabad HR, Zand E, Asghari A, Alamisaeid K, Travlos IS and Alebrahim MT (2016) Study of Fitness Cost in Three Rigid Ryegrass Populations Susceptible and Resistant to Acetyl-CoA Carboxylase Inhibiting Herbicides. Front. Ecol. Evol. 4:142. doi: 10.3389/fevo.2016.00142 Study of Fitness Cost in Three Rigid Ryegrass Populations Susceptible and Resistant t...

2014
Leila Priscila Peters Giselle Carvalho Paula Fabiane Martins Manuella Nóbrega Dourado Milca Bartz Vilhena Marcos Pileggi Ricardo Antunes Azevedo

The herbicides ametryn and clomazone are widely used in sugarcane cultivation, and following microbial degradation are considered as soil and water contaminants. The exposure of microorganisms to pesticides can result in oxidative damage due to an increase in the production of reactive oxygen species (ROS). This study investigated the response of the antioxidant systems of two bacterial strains...

Journal: :Pest management science 2008
Laure Mamy Benoit Gabrielle Enrique Barriuso

BACKGROUND Crops resistant to glyphosate may mitigate the increasing contamination of the environment by herbicides, since their weeding requires smaller amounts of herbicides and fewer active ingredients. However, there are few published data comparing the fate of glyphosate with that of substitute herbicides under similar soil and climatic conditions. The objectives of the work reported here ...

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